import StockData from '../StockData';
import CandlestickFinder from './CandlestickFinder';

export default class DownsideTasukiGap extends CandlestickFinder {
    constructor() {
        super();
        this.requiredCount  = 3;
        this.name = 'DownsideTasukiGap';
    }
    logic (data:StockData) {
        let firstdaysOpen   = data.open[0];
        let firstdaysClose  = data.close[0];
        let firstdaysHigh   = data.high[0];
        let firstdaysLow    = data.low[0]
        let seconddaysOpen  = data.open[1];
        let seconddaysClose = data.close[1];
        let seconddaysHigh  = data.high[1];
        let seconddaysLow   = data.low[1];
        let thirddaysOpen   = data.open[2];
        let thirddaysClose  = data.close[2];
        let thirddaysHigh   = data.high[2];
        let thirddaysLow    = data.low[2];
        
        let isFirstBearish       = firstdaysClose < firstdaysOpen;
        let isSecondBearish      = seconddaysClose < seconddaysOpen;
        let isThirdBullish       = thirddaysClose > thirddaysOpen;
        let isFirstGapExists     = seconddaysHigh < firstdaysLow;
        let isDownsideTasukiGap  = ((seconddaysOpen > thirddaysOpen) && 
                                   (seconddaysClose < thirddaysOpen) &&
                                   (thirddaysClose > seconddaysOpen) &&
                                   (thirddaysClose < firstdaysClose));              
   
        return (isFirstBearish && isSecondBearish && isThirdBullish && isFirstGapExists && isDownsideTasukiGap);
        
   }
}

export function downsidetasukigap(data:StockData) {
  return new DownsideTasukiGap().hasPattern(data);
}